Finding the Fourth Proportional to 5,340,938.11, 7,370,484.13 and 2,893,610.28
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Solution
The fourth proportional to 5,340,938.11, 7,370,484.13 and 2,893,610.28 is: 3,993,176.53
Step by Step Solution
- Step 1: Write the proportion equation
5,340,938.11 : 7,370,484.13 = 2,893,610.28 : x - Step 2: Convert to fraction form
5,340,938.11/7,370,484.13 = 2,893,610.28/x - Step 3: Cross multiply
5,340,938.11x = 7,370,484.13 × 2,893,610.28 - Step 4: Simplify right side
5,340,938.11x = 21,327,308,678,401.18 - Step 5: Solve for x
x = 21,327,308,678,401.18/5,340,938.11 - Step 6: Final answer
x = 3,993,176.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.